Inventor · disambiguated record
Erno H. Klaassen
Also filed as: KLAASSEN ERNO · KLAASSEN ERNO H · KLAASSEN ERNO HILBRAND
44 granted patents·4 pending applications·736 citations·filing 1994–2025
98Inventor score
Top patents by PatentIndex Score
48 records- 0198US9851298B1Light-based shielding detectionAPPLE INC·Filed 2016·Granted Dec 26, 2017·22 cites·20 claims
- 0297US10132680B1UV dosimetry and exposure alertAPPLE INC·Filed 2016·Granted Nov 20, 2018·22 cites·20 claims
- 0396US6400534B1Resistive shunt ESD and EOS protection for recording headsIBM·Filed 2000·Granted Jun 4, 2002·69 cites·17 claims
- 0495US7872394B1MEMS device with two axes comb drive actuatorsGRITTERS JOHN·Filed 2002·Granted Jan 18, 2011·116 cites·8 claims
- 0595US6977511B2Sensor and sensor array having improved selectivityXSILOGY INC·Filed 2005·Granted Dec 20, 2005·43 cites·15 claims
- 0694US6344949B1Flying height adjustment for air bearing slidersIBM·Filed 1999·Granted Feb 5, 2002·84 cites·34 claims
- 0793US11026628B1Systems and methods of spatial filtering for measuring electrical signalsAPPLE INC·Filed 2016·Granted Jun 8, 2021·23 cites·19 claims
- 0893US7545228B1Dynamic temperature compensation for a digitally controlled oscillator using dual MEMS resonatorsSITIME INC·Filed 2007·Granted Jun 9, 2009·48 cites·34 claims
- 0992US10772512B2Blood pressure monitoring using a multi-function wrist-worn deviceAPPLE INC·Filed 2017·Granted Sep 15, 2020·13 cites·7 claims
- 1091US5600174ASuspended single crystal silicon structures and method of making sameUNIV LELAND STANFORD JUNIOR·Filed 1994·Granted Feb 4, 1997·97 cites·9 claims
- 1190US11918381B2Vital signs monitoring systemAPPLE INC·Filed 2022·Granted Mar 5, 2024·1 cites·21 claims
- 1289US11069255B2Fluctuating progress indicatorAPPLE INC·Filed 2017·Granted Jul 20, 2021·3 cites·19 claims
- 1389US10702171B2Systems, devices, and methods for measuring blood pressure of a userAPPLE INC·Filed 2015·Granted Jul 7, 2020·12 cites·17 claims
- 1489US10517489B2Wrist worn accelerometer for pulse transit time (PTT) measurements of blood pressureAPPLE INC·Filed 2015·Granted Dec 31, 2019·12 cites·23 claims
- 1586US12217620B2Fluctuating progress indicatorAPPLE INC·Filed 2024·Granted Feb 4, 2025·0 cites·20 claims
- 1686US10512432B2Vital signs monitoring systemAPPLE INC·Filed 2017·Granted Dec 24, 2019·5 cites·19 claims
- 1786US7403147B2Precision capacitor arraySITIME CORP·Filed 2006·Granted Jul 22, 2008·17 cites·16 claims
- 1885US10779738B2Electrical coupling of pulse transit time (PTT) measurement system to heart for blood pressure measurementAPPLE INC·Filed 2017·Granted Sep 22, 2020·6 cites·29 claims
- 1983US9726922B1Reducing display noise in an electronic deviceAPPLE INC·Filed 2013·Granted Aug 8, 2017·5 cites·20 claims
- 2083US7489017B2Fixed parallel plate MEMS capacitor microsensor arrayXSILOGY INC·Filed 2006·Granted Feb 10, 2009·7 cites·19 claims
- 2182US11967246B2Fluctuating progress indicatorAPPLE INC·Filed 2023·Granted Apr 23, 2024·0 cites·20 claims
- 2281US12426858B2In-bed temperature array for menstrual cycle trackingAPPLE INC·Filed 2023·Granted Sep 30, 2025·0 cites·15 claims
- 2381US11375957B2Vital signs monitoring systemAPPLE INC·Filed 2019·Granted Jul 5, 2022·2 cites·20 claims
- 2481US6567232B1Capacitive voice coil actuator retract device with crash stop bounce detectorHITACHI GLOBAL STORAGE TECH·Filed 1999·Granted May 20, 2003·35 cites·19 claims
- 2580US12507951B2Systems and methods of spatial filtering for measuring electrical signalsAPPLE INC·Filed 2023·Granted Dec 30, 2025·0 cites·12 claims
- 2680US2025213125A1Blood Pressure Monitoring Using a Multi-Function Wrist-Worn DeviceAPPLE INC·Filed 2024·Application pending·0 cites
- 2778US10874313B2Heartrate tracking techniquesAPPLE INC·Filed 2017·Granted Dec 29, 2020·2 cites·20 claims
- 2878US10726731B2Breathing synchronization and monitoringAPPLE INC·Filed 2017·Granted Jul 28, 2020·3 cites·20 claims
- 2978US6864692B1Sensor having improved selectivityXSILOGY INC·Filed 2002·Granted Mar 8, 2005·14 cites·19 claims
- 3077US12239427B2Heartrate tracking techniquesAPPLE INC·Filed 2023·Granted Mar 4, 2025·0 cites·20 claims
- 3177US10324032B2Light-based shielding detectionAPPLE INC·Filed 2017·Granted Jun 18, 2019·2 cites·21 claims
- 3276US9037234B2Implantable cardiac stimulation devices, and methods of use therewith, that use assignable pace return capacitorsPACESETTER INC·Filed 2013·Granted May 19, 2015·9 cites·21 claims
- 3376US6560057B1Head positioning system for a disk drive during a power down conditionIBM·Filed 1999·Granted May 6, 2003·28 cites·21 claims
- 3475US11640768B2Fluctuating progress indicatorAPPLE INC·Filed 2021·Granted May 2, 2023·0 cites·20 claims
- 3575US2025148932A1Fluctuating progress indicatorAPPLE INC·Filed 2025·Application pending·0 cites
- 3672US2025176846A1Heartrate tracking techniquesAPPLE INC·Filed 2025·Application pending·0 cites
- 3771US11857341B2Systems and methods of spatial filtering for measuring electrical signalsAPPLE INC·Filed 2021·Granted Jan 2, 2024·0 cites·21 claims
- 3868US7115969B1Fixed parallel plate MEMS capacitor microsensor and microsensor array and method of making sameXSILOGY INC·Filed 2002·Granted Oct 3, 2006·12 cites·8 claims
- 3967US11690522B2Heartrate tracking techniquesAPPLE INC·Filed 2020·Granted Jul 4, 2023·0 cites·20 claims
- 4065US12220213B2Blood pressure monitoring using a multi-function wrist-worn deviceAPPLE INC·Filed 2020·Granted Feb 11, 2025·0 cites·15 claims
- 4163US6316898B1Pulse modulated capacitive retract device for a voice coil actuatorIBM·Filed 1999·Granted Nov 13, 2001·22 cites·19 claims
- 4262US8965526B2Active rejection of MRI gradient signals in an implantable medical devicePACESETTER INC·Filed 2012·Granted Feb 24, 2015·2 cites·17 claims
- 4360US11918324B2Electrical coupling of pulse transit time (PTT) measurement system to heart for blood pressure measurementAPPLE INC·Filed 2020·Granted Mar 5, 2024·0 cites·20 claims
- 4460US11771406B2In-bed temperature array for menstrual cycle trackingAPPLE INC·Filed 2020·Granted Oct 3, 2023·0 cites·15 claims
- 4557US10394359B2Reducing display noise in an electronic deviceAPPLE INC·Filed 2017·Granted Aug 27, 2019·0 cites·20 claims
- 4656US7393740B2Methods for making fixed parallel plate MEMS capacitor microsensors and microsensor arraysXSILOGY INC·Filed 2007·Granted Jul 1, 2008·0 cites·20 claims
- 4752US11896136B2Pneumatic haptic device having actuation cells for producing a haptic output over a bed mattressAPPLE INC·Filed 2020·Granted Feb 13, 2024·0 cites·21 claims
- 4838US2017293727A1Intelligent blood pressure monitoringAPPLE INC·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →